Cobham · Surrey
Wall tie replacement in Cobham
Horizontal cracking on a Cobham house is easy to mistake for subsidence. Rusting wall ties leave a much more regular pattern, though, and telling the two apart early saves time, money and an unnecessary insurance claim.
Guide price from£2,000per house inc VAT
- Postcodes
- KT11
- Population
- about 17,000
- Area
- Surrey
- Pricing region
- South East
Is Surrey prone to ground movement?
Cobham is in Surrey and takes in postcode districts KT11. About 17,000 people live there. Nearby places we cover include Esher (3 miles), Weybridge (4 miles) and Leatherhead (4 miles).
Shrinkable clay is widespread in Surrey. Ground movement here is more often linked to soils, drains and trees than to mining. Across Surrey, most homes are Victorian and Edwardian villas, 1930s semis and detached houses in the commuter towns, and post-war estates.
Symptoms that point to wall tie replacement
- Mortar joints that look wider or opened up on one elevation
- The roof edge or verge lifting slightly above the brickwork
- Horizontal cracks along mortar joints, repeating every few brick courses
Guide prices for wall tie replacement in Cobham
These are guide prices for Cobham, using South East rates and including VAT. Your written quote follows photos or a survey, and is fixed once the repair is specified.
| Item | Guide price | Per |
|---|---|---|
| Mid-terrace houseest. | £2,000 – £3,900 | per house |
| Semi-detached house | £2,800 – £5,600 | per house |
| Detached houseest. | £3,900 – £7,850 | per house |
| Scaffolding where neededest. | £670 – £2,000 | per elevation |
Methods for wall tie replacement
Partial rebuild of the outer leaf
If a section of the outer leaf has bulged too far to be tied back, it is carefully taken down and rebuilt with new ties built in as the work goes up. This is uncommon, and is usually limited to a gable top, a parapet or a panel under a window.
Best for: Outer leaf too distorted to tie back safely
Removing old ties and rebedding
On badly cracked elevations the old ties are cut out from the outer face, the joints raked and rebedded, and the brickwork repointed. It is more work than isolation but removes the source of expansion entirely. An engineer or the survey report usually specifies where this is needed.
Best for: Elevations with severe cracking or lifting
From first photo to finished repair
Report and quote
You receive a written summary of what the survey found on each elevation, which walls need new ties, whether old ties should be isolated or removed, and a no-obligation written quote with scaffold shown separately.
Access
Ties are fitted across the whole of each affected elevation, so scaffold or a tower is usually needed above ground floor. We plan access around conservatories, extensions, neighbours’ land and any parking that must be suspended.
Deal with the old ties and make good
Old ties are isolated or removed where the report calls for it, cracked joints are raked out and repointed, and drilled holes are filled in matching mortar. A written note of tie positions and findings goes in your property file.
Rules for wall tie replacement in England
Like-for-like repairs such as crack stitching and repointing do not usually need building control approval in England, but anything that changes or strengthens the structure, such as underpinning or rebuilding a wall, does. If the work touches a party wall, the Party Wall etc. Act 1996 may apply.
Frequently asked questions
How much will wall tie replacement cost in Cobham?
Guide prices for wall tie replacement in Cobham start from about £2,000 per house, including VAT, on South East rates. Your fixed written price follows photos or a survey and depends on the extent of the work and access.
Do you cover Cobham?
We do. Cobham and the surrounding area are covered, including nearby Esher and Weybridge. A free initial assessment from your photos is the first step.
Is the ground in Surrey prone to subsidence?
North Surrey sits on London Clay, the south on Weald Clay, with chalk along the North Downs and sands in the west. Large gardens with mature trees on clay make seasonal subsidence a familiar problem. Only an investigation can say why a particular building has moved.
Do the old wall ties have to be removed?
Not always, because thin wire ties that cannot swell are usually left in place once new ties are fitted. Thicker ties that are still expanding and cracking the wall are isolated or removed so they stop causing damage. The survey decides which applies.
How do I know if my wall ties have failed?
The clearest sign is horizontal cracking in the mortar joints repeating every few courses, often with a bulge or a lifted roofline. Wire ties can fail with no cracking at all, so a tie survey with a metal detector and borescope is the only reliable check.
Other structural repairs in Cobham
- Boundary and garden wall repairs
- Resin injection ground stabilisation
- Underpinning
- Crack stitching
- Brick arch repairs
Wall tie replacement near Cobham
Need a report for a buyer or lender in Cobham? Send us the valuation comment and we will explain what a tie survey and quote would cover.